Friday, July 16, 2010

11 kinds of people should not watch "Avatar"


3D film "Avatar" exhibition, attracted a great deal of audience enthusiasm. All along, wearing 3D glasses 3D movies, ranging from can cause dizziness, headache, sore eyes, fatigue and discomfort, weight can lead to acute glaucoma attack. Why will the audience watching 3D movie dizziness headache, eye irritation occurs? Viewers watching 3D movie, how to make scientific use of eyes? What people are not suitable for viewing 3D movies for? Involved in this series generated in our hearts the audience questions, and we specifically ask the professor for us to answer.


Question: Most people wear 3D glasses to see things affecting our physical health? Why 3D film audience will see dizziness headache, eye irritation occurs? Addition to the above symptoms may also lead to the audience what other symptoms occur?

professor: the general health of the audience to wear 3D glasses 3D short film will not cause too much impact on the body.

3D glasses on the body is mainly physical and psychological aspects:

Physical performance for the dry eye discomfort and fatigue: the environment mainly because of crowded theater air drying, concentration, reduced blinking, resulting in excessive tear evaporation, dry eye-like there. As the eyes wearing 3D glasses to see images of the different needs of the brain "fusion" feature different images of two eyes as a synthesis of three-dimensional images, the binocular stereopsis poor audience (such as anisometropia, strabismus, astigmatism, glasses fitting is not accurate) prone to visual fatigue, eyebrow pain, eye swelling, double vision and discomfort.

The performance of psychological fear, dizziness, nausea and severe symptoms even arise, mainly due to 3D images of the contents of the film mostly fly, spin, fast handover, through the ups and downs of sports scenes, which the normal afraid of heights, the audience is easy to produce motion sickness Zhengzhuang mental stress and psychological discomfort, in addition to 3D movies, music and pictures more exciting, take a look and feel would be more exciting, with cardiovascular disease may occur in patients with high blood pressure, dizziness, chest tightness and discomfort.

Question: what kind of people not suitable for wearing 3d glasses 3d movies?

professor: one eye, both eyes corrected visual acuity difference of more than 3 lines, strabismus, glaucoma and high risk patients, recovering from eye surgery, hypertension, heart disease, vertigo, fear of heights who were depressed or manic.

Question: It is reported that "shallow anterior chamber, narrow angle" of the people watching 3D movies, are particularly prone to acute glaucoma, and why? Then lead to what the risk factors for glaucoma? What are the symptoms of acute glaucoma attack? General our hospital How is it treated? What are complications of acute glaucoma attack?

professor: "shallow anterior chamber, narrow angle" of the audience watching 3D movie, a long time in low light conditions, pupil dilatation, so that accumulation of peripheral iris, angle becomes narrower, the water cycle affect the room, causing eye pressure is increased, induced angle-closure glaucoma. Another exciting scene from the film can be excited human autonomic nervous system, also allows mydriasis, glaucoma can cause seizures.

Cause angle-closure glaucoma risk factors include: family history, hyperopia, the elderly, darkroom environment, mydriasis, mental and emotional factors, drugs.

When you look at 3D movie / or after, as the dim, as the rainbow, eye pain, eye swelling, ipsilateral headache, or nausea and vomiting should be considered when symptoms may have increased intraocular pressure, glaucoma attack.

General view of elevation of intraocular pressure after 3D film caused by glaucoma is acute angle-closure glaucoma, and acute angle-closure glaucoma is acute eye is blinding eye disease, if the IOP can not be timely, effective control things can be completely invisible within a few days, but with drugs and surgery can not restore. Dimensional, when watching 3D movie performance when some of the above should stop watching movies immediately to the hospital, the sooner the better treatment. Acute angle-closure glaucoma include medication and surgery. General control of intraocular pressure with drugs first, and then the patient would choose a laser or surgical treatment can cure glaucoma.

Attack of acute angle-closure glaucoma after the sequelae include: dilated pupils and lens opacity, decreased visual acuity, if not treated in time can have repeatedly eye pain and even blindness.



Question: In addition to the "shallow anterior chamber, narrow angle" of the people is not suitable for viewing 3D, other eye patients, such as our common myopia, hyperopia, etc. or have a special eye to those patients, will also not suitable for 3D viewing movie? If so, do this part of the audience that the measures to protect the eyes.

professor: for myopia and astigmatism in the audience, should be wearing the right glasses, binocular visual acuity of 1.0, binocular vision balance can watch 3D movies. But not more than 40 years of age and have a hyperopic patients, there may be shallow anterior chamber, narrow angle of risk factors, the best to the hospital later to see 3D movies. Those who have strabismus, a difference of up to 300 degrees binocular vision, monocular patients because the brain can not overlap for the three-dimensional portrait of the film image, so to see 3D movies may not enjoy the beauty of them, so meaningful to see 3D movies. Other special eye patients should consult a doctor.

Question: It was also suggested to eat before the movie anti-vertigo drugs, may slightly improve the discomfort, will it be viable?

professor: do not recommend taking the audience to buy their own anti-motion sickness drugs, because these drugs can cause dry mouth, face red, heart rate, elevation of intraocular pressure response. Should be used under the guidance of doctors.

(Postscript): Recently, 3D film "Avatar," the Reying craze set off, indicating that the film industry into the era of 3D movies. People access to opportunities for future access to more and more 3D movies, how to watch 3D movies of science in protecting the eyes for this position, it is very important. 3D movies, and always to be seen. But the eye every day should be protected.

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